An Abdominal Aortic Aneurysm (AAA) is a localized bulge or swelling in the aorta, the body’s largest artery, as it passes through the abdomen. In abdominal ultrasound, an AAA appears as a dilated segment of the aorta, typically exceeding 3 cm in diameter. Early detection via medical ultrasound is crucial for preventing rupture, a life-threatening complication, making it a key focus in abdominal imaging.
Regular screening using abdominal ultrasound is recommended for at-risk individuals to monitor AAA size and progression. This non-invasive imaging technique provides real-time visualization, allowing clinicians to accurately measure the aneurysm and assess for associated findings like mural thrombus. Understanding AAA characteristics in ultrasound is vital for diagnostic accuracy and patient management in abdominal and vascular medicine.
